<template>
    <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
        <el-row :gutter="20">
            <el-col :span="8">
              <el-input placeholder="请输入内容" 
              v-model="queryInfo.query" clearable @clear="getGoodsList">
                <el-button slot="append" icon="el-icon-search"
                @click="getGoodsList">
                </el-button>
              </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="goAddpage">添加商品</el-button>
            </el-col>
        </el-row>

        <!-- table表格区域 -->
        <el-table :data="goodslist" border stripe>
         <!-- 索引列 -->
         <el-table-column type="index">
         </el-table-column>
         <el-table-column label="商品名称" prop="goods_name" >
         </el-table-column>
         <el-table-column label="商品价格(元)" prop="goods_price" width="100px">
         </el-table-column>
         <el-table-column label="商品重量" prop="goods_weight" width="70px">
         </el-table-column>
         <el-table-column label="商品创建时间" prop="add_time" width="140px">
             <template slot-scope="scope">
              {{scope.row.add_time | dateFormat}}
             </template>
         </el-table-column>
         <el-table-column label="操作" width="130px">
             <template slot-scope="scope">
               <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                <el-button type="danger" icon="el-icon-delete"
                 size="mini" @click="removeById(scope.row.goods_id)"></el-button>
             </template>
         </el-table-column>
        </el-table>

        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[5, 10, 15, 20]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          background>
        </el-pagination>
    </el-card>
    </div>
</template>

<script>
export default {
    data() {
     return {
         //查询参数对象
         queryInfo: {
             query: '',
             pagenum: 1,
             pagesize: 10
         },
        // 商品列表
        goodslist: [],
        //总数据条数
        total: 0
     }
    },
    created() {
        this.getGoodsList() 
    },
    methods: {
        //根据分页获取相对应的商品列表
       async getGoodsList() {
         const { data: res} = await this.$http.get('goods', {params: 
         this.queryInfo})

         if(res.meta.status !==200) {
             return this.$message.error('获取商品列表失败！')
         }

          this.$message.success('获取商品列表成功！')
          console.log(res.data)
          this.goodslist = res.data.goods
          this.total = res.data.total
        },
        handleSizeChange(newSize) {
           this.queryInfo.pagesize = newSize
           this.getGoodsList()
        },
        handleCurrentChange(newPage) {
          this.queryInfo.pagenum = newPage
          this.getGoodsList()
        },
        async removeById(id) {
          const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        if(confirmResult !== 'confirm') {
            return this.$message.info('已经取消删除！')
        }

        const {data: res} = await this.$http.delete(`goods/${id}`)

        if(res.meta.status !== 200) {
            return this.$message.error('删除失败！')
        }

        this.$message.success('删除成功！')
        this.getGoodsList()
        },
        goAddpage() {
            this.$router.push('goods/add')
        }
    }
}
</script>

<style lang="less" scoped>

</style>